Scleritis, or sclera inflammation, is the inflammation of the sclera, the outer white part of the eye. The disease often develops in conjunction with other diseases, such as Wegner granulomatosis or rheumatoid arthritis. It may also occur as a result of irregular menstruation (menstruation). Therefore, it is more common in young women. Eye pain, headache, blurred vision and photophobia are symptoms. There are three types of scleritis: diffuse scleritis (the most common), nodular scleritis, and necrotizing scleritis (the most severe).